<template>
  <div>
    <!-- 面包屑导航区  -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片视图区 -->
    <el-card class="box-card">
      <!-- 搜索与添加区 -->
      <el-row :gutter="20">
        <el-col :span="10">
          <el-input
            placeholder="请输入内容"
            v-model="queryInfo.query"
            clearable
            @clear="getUserList"
          >
            <el-button
              slot="append"
              icon="el-icon-search"
              @click="getUserList"
            ></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="addDialogVisible = true"
            >添加用户</el-button
          >
        </el-col>
      </el-row>

      <!-- 用户列表区 -->
      <el-table :data="userlist" border stripe>
        <el-table-column label="序号" type="index"> </el-table-column>
        <el-table-column label="姓名" prop="username"> </el-table-column>
        <el-table-column label="邮箱" prop="email"> </el-table-column>
        <el-table-column label="电话" prop="mobile"> </el-table-column>
        <el-table-column label="角色" prop="role_name"> </el-table-column>
        <el-table-column label="状态">
          <!-- 拿到当前行的数据中的mg_state的值，用于关闭或打开开关 -->
          <template slot-scope="scope">
            <el-switch
              v-model="scope.row.mg_state"
              @change="userStateChanged(scope.row)"
            ></el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作">
          <template slot-scope="scope">
            <!-- 修改按钮 -->
            <el-tooltip
              class="item"
              effect="dark"
              content="修改信息"
              placement="top"
              :enterable="false"
            >
              <el-button
                type="primary"
                icon="el-icon-edit"
                size="mini"
                circle
                @click="showEditDialogVisible(scope.row.id)"
              >
              </el-button>
            </el-tooltip>

            <!-- 删除按钮 -->
            <el-tooltip
              class="item"
              effect="dark"
              content="删除信息"
              placement="top"
              :enterable="false"
            >
              <el-button
                type="danger"
                icon="el-icon-delete"
                size="mini"
                circle
                @click="removeUserById(scope.row.id)"
              ></el-button>
            </el-tooltip>

            <!-- 分配角色按钮 -->
            <el-tooltip
              class="item"
              effect="dark"
              content="分配角色"
              placement="top"
              :enterable="false"
            >
              <el-button
                type="warning"
                icon="el-icon-setting"
                size="mini"
                circle
                @click="allcoRolesBtn(scope.row)"
              ></el-button>
            </el-tooltip>

            <!-- 分配角色对话框 -->
            <el-dialog
              title="分配角色"
              :visible.sync="allcoRolesDialogVisible"
              width="40%"
            >
              <div>
                <p>
                  当前的用户：<span style="color: green">{{
                    userInfo.username
                  }}</span>
                </p>
                <p>
                  当前的角色：<span style="color: green">{{
                    userInfo.role_name
                  }}</span>
                </p>
                <p>
                  分配新的角色：
                  <el-select v-model="selectRole" placeholder="请选择">
                    <el-option
                      v-for="item in rolesList"
                      :key="item.id"
                      :label="item.roleName"
                      :value="item.id"
                    >
                    </el-option>
                  </el-select>
                </p>
              </div>
              <span slot="footer" class="dialog-footer">
                <el-button @click="allcoRolesDialogVisible = false"
                  >取 消</el-button
                >
                <el-button type="primary" @click="subRoleInfo">确 定</el-button>
              </span>
            </el-dialog>
          </template>
        </el-table-column>
      </el-table>

      <!-- 分页区域 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[1, 2, 5, 10]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      >
      </el-pagination>
    </el-card>

    <!-- 添加用户对话框 -->
    <el-dialog
      title="添加用户"
      :visible.sync="addDialogVisible"
      width="40%"
      @close="addDialogClosed"
    >
      <!-- 添加内容主体区 -->
      <el-form
        :model="addForm"
        :rules="addFormRules"
        ref="addFormRef"
        label-width="70px"
        class="demo-ruleForm"
      >
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机号" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser">确 定</el-button>
      </span>
    </el-dialog>

    <!-- 修改用户信息的对话框 -->
    <el-dialog title="修改用户" :visible.sync="editDialogVisible" width="40%">
      <!-- 添加内容主体区 -->
      <el-form
        :model="editForm"
        :rules="editFormRules"
        ref="editFormRef"
        label-width="70px"
        class="demo-ruleForm"
      >
        <el-form-item label="用户名" prop="username">
          <el-input v-model="editForm.username" disabled></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机号" prop="mobile">
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="editUserInfo">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
export default {
  data() {
    return {
      //获取用户列表的参数对象
      queryInfo: {
        query: "",
        //当前的页码数
        pagenum: 1,
        //当前显示多少条数据
        pagesize: 2,
      },
      //用户信息列表
      userlist: [],
      //角色信息列表
      rolesList: [],
      total: 0,
      //控制添加用户对话框的显示与隐藏
      addDialogVisible: false,
      //控制修改用户对话框的显示与隐藏
      editDialogVisible: false,
      //保存添加用户的数据对象
      addForm: {
        username: "",
        password: "",
        email: "",
        mobile: "",
      },
      //保存修改后的用户的数据
      editForm: {
        username: "",
        email: "",
        mobile: "",
      },
      //添加表单的验证规则对象
      addFormRules: {
        username: [
          { required: true, message: "请输入用户名", trigger: "blur" },
          {
            min: 3,
            max: 10,
            message: "长度在 3 到 10 个字符",
            trigger: "blur",
          },
        ],
        password: [
          { required: true, message: "请输入用户密码", trigger: "blur" },
          {
            min: 6,
            max: 16,
            message: "长度在 6 到 16 个字符",
            trigger: "blur",
          },
        ],
        email: [{ required: true, message: "请输入用户邮箱", trigger: "blur" }],
        mobile: [
          { required: true, message: "请输入用户手机号", trigger: "blur" },
        ],
      },
      editFormRules: {
        email: [{ required: true, message: "请输入用户邮箱", trigger: "blur" }],
        mobile: [
          { required: true, message: "请输入用户手机号", trigger: "blur" },
        ],
      },
      //控制分配角色对话框的显示与隐藏
      allcoRolesDialogVisible: false,
      //需要分配角色的用户信息
      userInfo: {},
      //保存用户选择的角色值
      selectRole: "",
    };
  },

  created() {
    this.getUserList();
  },
  methods: {
    async getUserList() {
      const { data: res } = await this.$http.get("users", {
        params: this.queryInfo,
      });
      if (res.meta.status !== 200) {
        return this.$message.error("获取用户列表失败！");
      } else {
        this.userlist = res.data.users;
        this.total = res.data.total;
        // console.log(res);
      }
    },

    //监听pagesize改变的事件
    handleSizeChange(newSize) {
      this.queryInfo.pagesize = newSize;
      this.getUserList();
    },
    //监听页码值改变的事件
    handleCurrentChange(newPage) {
      this.queryInfo.pagenum = newPage;
      this.getUserList();
    },
    //监听switch开关状态的改变
    async userStateChanged(userInfo) {
      const { data: res } = await this.$http.put(
        `users/${userInfo.id}/state/${userInfo.mg_state}`
      );
      if (res.meta.status !== 200) {
        userInfo.mg_state = !userInfo.mg_state;
        return this.$message.error("用户状态更新失败！");
      }
      this.$message.success("用户状态更新成功！");
    },
    //监听添加用户对话框的关闭事件,关闭对话框时，重置表单
    addDialogClosed() {
      this.$refs.addFormRef.resetFields();
    },
    //监听修改用户对话框的关闭事件，关闭对话框时重置表单
    // editDialogClosed() {
    //   this.$refs.editFormRef.resetFields();
    // },
    //点击确定按钮时，添加新用户
    addUser() {
      this.$refs.addFormRef.validate(async (valid) => {
        if (!valid) return;
        const { data: res } = await this.$http.post("users", this.addForm);
        if (res.meta.status !== 201) {
          this.$message.error("添加用户失败!");
        }
        //关闭对话框时隐藏对话框
        this.addDialogVisible = false;
        //刷新用户数据
        this.getUserList();
        //提示添加成功
        this.$message.success("添加用户成功！");
      });
    },
    //展示修改用户的对话框
    async showEditDialogVisible(id) {
      // console.log(id);
      const { data: res } = await this.$http.get(`users/${id}`);
      if (res.meta.status !== 200) {
        return this.$message.error("查询用户信息失败！");
      }
      this.editForm = res.data;
      this.editDialogVisible = true;
    },
    //提交修改后的用户数据
    editUserInfo() {
      //对表单进行预验证再进行数据请求
      this.$refs.editFormRef.validate(async (valid) => {
        // console.log(valid);
        if (!valid) return;
        const { data: res } = await this.$http.put(
          `users/${this.editForm.id}`,
          {
            email: this.editForm.email,
            mobile: this.editForm.mobile,
          }
        );
        if (res.meta.status !== 200) {
          return this.$message.error("修改用户信息失败！");
        }
        //关闭对话时隐藏对话框
        this.editDialogVisible = false;
        //刷新数据列表
        this.getUserList();
        //提示修改成功
        this.$message.success("修改用户数据成功！");
      });
    },
    //根据用户id删除用户信息
    async removeUserById(id) {
      //弹框询问用户是否删除
      const confirmResult = await this.$confirm(
        "此操作将永久删除该用户, 是否继续?",
        "提示",
        {
          confirmButtonText: "确定",
          cancelButtonText: "取消",
          type: "warning",
        }
      ).catch((err) => err);
      // console.log(confirmResult);
      //如果用户确认删除，则返回字符串confirm
      //如果用户取消删除，着返回字符串cancel
      if (confirmResult == "cancel") {
        return this.$message.info("已经取消删除！");
      }
      //请求数据
      const { data: res } = await this.$http.delete(`users/${id}`);
      if (res.meta.status !== 200) {
        return this.$message.error("删除用户失败！");
      }
      this.$message.success("删除用户成功！");
      //刷新用户数据
      this.getUserList();
    },
    //分配角色按钮
    async allcoRolesBtn(userInfo) {
      this.userInfo = userInfo;
      //获取所有角色列表
      const { data: res } = await this.$http.get("roles");
      // console.log(res);
      if (res.meta.status !== 200) {
        return this.$message.error("获取角色列表失败！");
      }
      //保存角色列表的值
      this.rolesList = res.data;
      //提示
      // this.$message.success("获取角色列表成功！");
      //显示分配角色按钮
      this.allcoRolesDialogVisible = true;
    },
    //提交修改后的权限
    async subRoleInfo() {
      if (!this.selectRole) {
        return this.$message.error("请选择一个要分配的角色！");
      }
      const { data: res } = await this.$http.put(
        `users/${this.userInfo.id}/role`,
        { rid: this.selectRole }
      );
      if (res.meta.status !== 200) {
        return this.$message.error("获取角色失败!");
      }
      //提示
      this.$message.success("更新角色成功！");
      //刷新列表
      this.getUserList();
      //隐藏更新角色对话框
      this.allcoRolesDialogVisible = false;
    },
  },
};
</script>

<style lang="less" scoped></style>
